CN210486455U - Graphite heating vacuum tube sintering equipment for 3D printing of medical metal implant - Google Patents
Graphite heating vacuum tube sintering equipment for 3D printing of medical metal implant Download PDFInfo
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- CN210486455U CN210486455U CN201921550332.1U CN201921550332U CN210486455U CN 210486455 U CN210486455 U CN 210486455U CN 201921550332 U CN201921550332 U CN 201921550332U CN 210486455 U CN210486455 U CN 210486455U
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Abstract
The utility model provides a graphite heating vacuum tube sintering equipment for 3D prints medical metal implant, includes furnace body, heater and crucible, the furnace body is the tube-shape, be equipped with the inner bag in the furnace body, the inner bag is the tube-shape, and its bottom is open, the top has the inner bag lid, the heater includes graphite heating pipe, graphite tray and electrode pole, the graphite heating pipe is located in the inner bag, its pipe wall encloses into a plurality of heating plates that the round and all upper and lower direction was arranged by the interval and constitutes, and adjacent heating plate is connected according to the lower extreme and the continuous circulation order in upper end, is the wave. The utility model discloses a graphite heating pipe heats, and heating efficiency is high to the pipe wall of graphite heating pipe is the wave design, makes the temperature field homogeneity in the graphite heating pipe high, and the heating is even.
Description
Technical Field
The utility model relates to a 3D prints technical field, especially relates to a graphite heating vacuum tube sintering equipment for 3D prints medical metal implant.
Background
The vacuum sintering furnace is mainly used for vacuum reaction sintering of tungsten alloy, silicon carbide, molybdenum alloy, titanium alloy, hard alloy and the like and carbon materials.
The heating efficiency of the heating body of the traditional vacuum sintering furnace is low, and the uniformity of the temperature field is poor.
SUMMERY OF THE UTILITY MODEL
Based on this, to the technical problem, provide a graphite heating vacuum tube sintering equipment for 3D printing medical metal implant.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a graphite heating vacuum tube sintering device for 3D printing of medical metal implants comprises a furnace body, a heater and a crucible, wherein the furnace body is cylindrical, the top of the furnace body is provided with a furnace cover, the bottom of the furnace body and the top of the furnace cover are respectively provided with an air inlet and an exhaust hole, the furnace body is internally provided with an inner container, the inner container is cylindrical, the bottom of the inner container is open, the top of the inner container is provided with an inner container cover, the heater comprises a graphite heating tube, a graphite tray and an electrode rod, the graphite heating tube is arranged in the inner container, the tube wall of the graphite heating tube is formed by a plurality of heating sheets which are arranged in the vertical direction at intervals, the adjacent heating sheets are connected in a circulating sequence with the lower ends connected and the upper ends connected and are wavy, the connecting parts of at least two lower ends extend downwards to form supporting parts, and, each graphite tray is respectively arranged below the corresponding supporting part in a one-to-one correspondence manner, a groove inserted by the corresponding supporting part is formed in each graphite tray, each electrode rod upwards penetrates through the bottom of the furnace body and is respectively connected with one graphite tray, the crucible is supported in the graphite heating tube by a support frame, and the support frame is fixed with the furnace body.
The supporting parts, the graphite trays and the electrode rods are all 3, the horizontal cross sections of the 3 supporting parts are arc-shaped, the horizontal cross sections of the 3 supporting parts are equally spaced to form a circle along the central line of the graphite heating pipe, the 3 graphite trays are respectively positioned below the 3 supporting parts, and the grooves are arc-shaped.
The bottom of furnace body has 3 sleeves that supply 3 electrode bars to pass, 3 sleeves are located respectively 3 graphite tray below, the electrode bar passes the sleeve pipe and is fixed with corresponding graphite tray.
The support frame includes by supreme base, a plurality of cushion and the pad lid that stacks gradually down, the upper surface of base has the first support ring of going up, support ring and first lower support ring on the upper surface and the lower surface of cushion form the second respectively, the lower surface of pad lid forms the second lower support ring, the first support ring of going up is nested each other with the first lower support ring of a cushion below, and support ring and first lower support ring are nested each other on the second of adjacent cushion, support ring is nested each other on the second of second lower support ring and a cushion above the top.
The base, the cushion block and the cushion cover are respectively a graphite base, a graphite cushion block and a graphite cushion cover, and graphite blankets are arranged in cavities formed among the base, the cushion block and the cushion cover through nesting.
The inner container and the crucible are respectively a graphite inner container and a graphite crucible, and a graphite blanket layer is arranged on the inner wall of the inner container.
This scheme is still including being used for making bell jacking and horizontal rotation's bell jacking rotary mechanism, bell jacking rotary mechanism includes but horizontal pivoted spiral arm, is used for the jacking the lower apical axis of spiral arm and be used for the drive the handle of apical axis jacking down, the spiral arm is connected with global of bell, the handle with the apical axis transmission is connected down.
The furnace cover jacking and rotating mechanism further comprises a guide pipe, the guide pipe is vertically fixed on the upper portion of the periphery of the furnace body through a fixing frame, an upper linear bearing and a lower linear bearing are arranged in inner cavities at the upper end and the lower end of the guide pipe respectively, the swing arm is rotationally fixed on an upper jacking shaft, the lower end of the upper jacking shaft penetrates downwards to form the upper linear bearing, a limiting ring which is abutted to the upper end face of the guide pipe is arranged on the upper jacking shaft, and the upper end of the lower jacking shaft penetrates upwards to form the lower linear bearing.
The lower extreme of stand pipe is equipped with two fixed plates of downwardly extending and symmetry, be equipped with the primary shaft between the lower extreme of two fixed plates, the upper end of handle passes through the primary shaft is connected with two fixed plates rotate, and the upper end of this handle passes through the secondary shaft and is connected with the lower extreme of a connecting rod rotates, the upper end of connecting rod pass through the third axle with the lower extreme of apical axis rotates down and is connected.
This scheme is still including locating a plurality of locking mechanical system between furnace body and the bell, locking mechanical system is including the locking screw and the latch segment that can overturn from top to bottom, locking screw's lower extreme has the locking hand wheel, the upper end through the horizontally articulated shaft with be fixed in the articulated seat on the global upper portion of furnace body is articulated, the latch segment is fixed in on global of bell, have the confession on it the U-shaped breach that the card was gone into just after the locking screw upwards overturns.
The utility model discloses a graphite heating pipe heats, and heating efficiency is high to the pipe wall of graphite heating pipe is the wave design, makes the temperature field homogeneity in the graphite heating pipe high, and the heating is even.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a vertical cross-sectional view of the present invention;
fig. 3 is a schematic structural view of the graphite heating pipe of the present invention;
fig. 4 is a schematic structural view of the graphite tray of the present invention;
fig. 5 is a schematic structural view of the support frame of the present invention;
fig. 6 is a schematic structural view of the furnace lid jacking and rotating mechanism of the present invention;
fig. 7 is an axial cross-sectional view of a guide pipe of the furnace lid jacking rotary mechanism of the utility model;
fig. 8 is a schematic structural diagram of the locking mechanism of the present invention.
Detailed Description
As shown in fig. 1 and 2, a graphite heating vacuum tube sintering apparatus for 3D printing of medical metal implants includes a furnace body 1100, a heater 1200 and a crucible 1300.
The furnace body 1100 is cylindrical and has a furnace lid 1400 at the top.
The bottom of the furnace body 1100 and the top of the furnace cover 1400 are respectively provided with an air inlet 1110 and an air outlet 1410 for the entry and discharge of inert shielding gas. The bottom of the furnace body 1100 and the furnace cover 1400 are provided with interlayers in which a water cooling system is arranged.
The furnace body 1100 is provided with a concentric inner container 1120, the inner container 1120 is cylindrical, the bottom of the inner container is open, and the top of the inner container is provided with an inner container cover 1121.
As shown in fig. 2, the heater 1200 includes a graphite heating tube 1210, a graphite tray 1220, and an electrode rod 1230.
The graphite heating tube 1210 is concentrically disposed in the inner container 1120, and as shown in fig. 3, the tube wall thereof is formed by a plurality of heating sheets 1211 which are arranged in the up-down direction and are surrounded into a circle at intervals, and the adjacent heating sheets 1211 are connected in a cyclic sequence of connected lower ends and connected upper ends, and are in a wave shape, wherein at least two connected lower ends extend downwards to form a supporting portion 1212.
As shown in fig. 4, the number of the graphite trays 1220 and the number of the electrode rods 1230 are the same as the number of the support portions 1212, each of the graphite trays 1220 is disposed below the corresponding support portion 1212 in a one-to-one correspondence, a slot 1221 into which the corresponding support portion 1212 is inserted is formed in each of the graphite trays 1220, and each of the electrode rods 1230 passes upward through the bottom of the furnace body 1100 and is connected to one of the graphite trays 1220. The electrode rod 1230 is electrically connected and conducts electricity to the graphite heating tube 1210 through the graphite tray 1220, thereby generating heat.
The utility model discloses a graphite heating pipe 1210 heats, and heating efficiency is high to the pipe wall of graphite heating pipe 1210 is the wave design, makes the temperature field homogeneity in the graphite heating pipe 1210 high, and the heating is even.
Preferably, the number of the supporting portions 1212, the graphite trays 1220 and the electrode rods 1230 are 3, the horizontal cross-sections of the 3 supporting portions 1212 are arc-shaped and surround a circle at equal intervals along the center line of the graphite heating pipe 1210, the 3 graphite trays 1220 are respectively located below the 3 supporting portions 1212, and the grooves 1221 are arc-shaped.
Specifically, as shown in fig. 1 and fig. 2, the bottom of the furnace body 1100 is provided with 3 sleeves 1130 through which 3 electrode rods 1230 pass, the 3 sleeves 1130 are respectively located below the 3 graphite trays 1220, and the electrode rods 1230 pass through the sleeves 1130 and are fixed with the corresponding graphite trays 1220. In this embodiment, a spacer 1231 is disposed between the electrode rod 1230 and the sleeve 1130, the electrode rod 1230 is fixed to the graphite tray 1220 by a first bolt 1232 on the upper surface of the graphite tray 1220, and is fixed to the graphite tray 1220 by a collar 1233 and a second bolt 1234 sequentially from top to bottom on the lower surface of the graphite tray 1220.
As shown in fig. 2 and 4, the crucible 1300 is supported by the support frame 1500 in the graphite heating tube 1210, the support frame 1500 is fixed to the furnace body 1100, and the support frame 1500 can perform heat insulation in addition to the supporting function.
As shown in fig. 5, the supporting frame 1500 includes a base 1510, a plurality of spacers 1520 and a pad cover 1530 sequentially stacked from bottom to top, wherein the upper surface of the base 1510 has a first upper supporting ring 1511, the upper surface and the lower surface of the spacers 1520 form a second upper supporting ring 1521 and a first lower supporting ring 1522 respectively, the lower surface of the pad cover 1530 forms a second lower supporting ring 1531, the first upper supporting ring 1511 is nested with the first lower supporting ring 1522 of the lowermost spacer 1520, the second upper supporting ring 1521 of the adjacent spacer 1520 is nested with the first lower supporting ring 1522, and the second lower supporting ring 1531 is nested with the second upper supporting ring 1521 of the uppermost spacer. The number of spacers 1520 may be increased or decreased as desired to adjust the position of crucible 1300.
In this embodiment, the base 1510, the cushion block 1520 and the cushion cover 1530 are all disc-shaped and concentric, wherein the lower surface of the base 1510 has a third lower support ring 1512, the third lower support ring 1512 is nested with the base tube 1513, and the base tube 1513 is fixed to the bottom of the furnace 1100.
The first upper support ring 1511, the second upper support ring 1521, the first lower support ring 1522, the second lower support ring 1531, the third lower support ring 1512 and the base tube 1513 are all concentric, the inner diameters and the outer diameters of the first upper support ring 1511 and the second upper support ring 1521 are the same, the inner diameters and the outer diameters of the first lower support ring 1522 and the second lower support ring 1531 are the same, and the inner diameters of the first lower support ring 1522 and the second lower support ring 1531 are slightly larger than the outer diameters of the first upper support ring 1511 and the second upper support ring 1521.
In this embodiment, the base 1510, the cushion block 1520, and the cushion cover 1530 are made of graphite, and a disc-shaped graphite blanket 1540 is disposed in a cavity formed by nesting the base 1510, the cushion block 1520, and the cushion cover 1530.
In this embodiment, the inner container 1120 and the crucible 1300 are made of graphite, and a graphite blanket layer 1122 is disposed on the inner wall of the inner container 1120.
In order to open the furnace cover 1400, as shown in fig. 1 and fig. 6, the utility model discloses still set up the furnace cover jacking rotary mechanism 1600 that is used for making the jacking of furnace cover 1400 and horizontal rotation, furnace cover jacking rotary mechanism 1600 includes but horizontal rotation's spiral arm 1610, is used for the lower apical axis 1620 of jacking spiral arm 1610 and is used for driving the handle 1630 of apical axis 1620 jacking down, spiral arm 1610 and furnace cover 1400 are connected global, handle 1630 and apical axis 1620 transmission are connected down. When the furnace cover is used, the handle 1630 drives the lower top shaft 1620 to lift up, the rotary arm 1610 ascends, the furnace cover 1400 ascends away from the furnace body 1100, and then the rotary arm 1610 horizontally rotates to the outer side of the furnace body 1100.
Specifically, the furnace lid jacking rotation mechanism 1600 is further provided with a guide pipe 1640, the guide pipe 1640 is vertically fixed on the upper portion of the circumferential surface of the furnace body 1100 through a fixing frame 1641, inner cavities at the upper end and the lower end of the guide pipe 1640 are respectively provided with an upper linear bearing 1642 and a lower linear bearing 1643 (see fig. 7), the swing arm 1610 is rotationally fixed on an upper top shaft 1611 and is connected with the circumferential surface of the furnace lid 1400, the lower end of the upper top shaft 1611 downwards penetrates through the upper linear bearing 1642, the upper top shaft 1611 is provided with a limit ring 1611a which is abutted against the upper end surface of the guide pipe 1640, and the upper end of the lower top shaft 1620 upwards penetrates through the lower linear bearing 1643.
The lower extreme of stand pipe 1640 is equipped with two fixed plates 1644 downwardly extending and symmetry, is equipped with first axle 1645 between the lower extreme of two fixed plates 1644, and the upper end of handle 1630 rotates with two fixed plates 1644 through first axle 1645 and is connected, and the both ends that the upper end of this handle 1630 passes through the second axle 1631 rotate with the lower extreme of two connecting rods 1632 and be connected, and the upper end of two connecting rods 1632 rotates with the lower extreme of lower apical axis 1620 through third axle 1633 and is connected.
As shown in fig. 8, in order to lock the furnace body 1100 and the furnace cover 1400, the utility model discloses still set up a plurality of locking mechanism 1700 between furnace body 1100 and furnace cover 1400, locking mechanism 1700 includes locking screw 1710 and latch segment 1720 that can overturn from top to bottom, the lower extreme of locking screw 1710 has locking hand wheel 1711, the upper end is articulated with the hinge seat 1730 that is fixed in furnace body 1100 global upper portion through horizontally articulated shaft 1712, latch segment 1720 is fixed in on the global of furnace cover 1400, have the U-shaped breach 1721 that supplies the locking screw 1710 to go into after upwards overturning just.
However, those skilled in the art should realize that the above embodiments are only used for illustrating the present invention and not used as a limitation of the present invention, and that the changes and modifications to the above embodiments are within the scope of the appended claims as long as they are within the true spirit of the present invention.
Claims (10)
1. A graphite heating vacuum tube sintering device for 3D printing of medical metal implants is characterized by comprising a furnace body, a heater and a crucible, wherein the furnace body is cylindrical, the top of the furnace body is provided with a furnace cover, the bottom of the furnace body and the top of the furnace cover are respectively provided with an air inlet hole and an exhaust hole, the furnace body is internally provided with an inner container, the inner container is cylindrical, the bottom of the inner container is open, the top of the inner container is provided with an inner container cover, the heater comprises a graphite heating tube, a graphite tray and electrode rods, the graphite heating tube is arranged in the inner container, the tube wall of the graphite heating tube is formed by a plurality of heating sheets which are arranged in the vertical direction and are enclosed into a circle at intervals, adjacent heating sheets are connected according to a circulating sequence with the lower ends connected and the upper ends connected and are wavy, the connecting positions of at least two lower ends extend downwards to, each graphite tray is respectively arranged below the corresponding supporting part in a one-to-one correspondence manner, a groove inserted by the corresponding supporting part is formed in each graphite tray, each electrode rod upwards penetrates through the bottom of the furnace body and is respectively connected with one graphite tray, the crucible is supported in the graphite heating tube by a support frame, and the support frame is fixed with the furnace body.
2. The sintering equipment for the graphite heating vacuum tube used for 3D printing of the medical metal implant according to claim 1, wherein the number of the supporting parts, the graphite trays and the electrode rods is 3, the horizontal cross section of the 3 supporting parts is arc-shaped and is enclosed into a circle at equal intervals along the central line of the graphite heating tube, the 3 graphite trays are respectively positioned below the 3 supporting parts, and the grooves are arc-shaped.
3. The sintering equipment for the graphite heating vacuum tube used for 3D printing of the medical metal implant according to claim 2, wherein the bottom of the furnace body is provided with 3 sleeves for 3 electrode rods to pass through, the 3 sleeves are respectively positioned below the 3 graphite trays, and the electrode rods pass through the sleeves and are fixed with the corresponding graphite trays.
4. The sintering device for the graphite heating vacuum tube for 3D printing of the medical metal implant according to claim 3, wherein the supporting frame comprises a base, a plurality of cushion blocks and a cushion cover which are sequentially stacked from bottom to top, the upper surface of the base is provided with a first upper supporting ring, the upper surfaces and the lower surfaces of the cushion blocks respectively form a second upper supporting ring and a first lower supporting ring, the lower surface of the cushion cover forms a second lower supporting ring, the first upper supporting ring is mutually nested with the first lower supporting ring of the lowermost cushion block, the second upper supporting ring of the adjacent cushion block is mutually nested with the first lower supporting ring, and the second lower supporting ring is mutually nested with the second upper supporting ring of the uppermost cushion block.
5. The sintering device for the graphite heating vacuum tube for 3D printing of the medical metal implant according to claim 4, wherein the base, the cushion block and the cushion cover are a graphite base, a graphite cushion block and a graphite cushion cover respectively, and a graphite blanket is arranged in a cavity formed by nesting of the base, the cushion block and the cushion cover.
6. The sintering equipment for the graphite heating vacuum tube for 3D printing of the medical metal implant according to claim 5, wherein the inner container and the crucible are a graphite inner container and a graphite crucible respectively, and a graphite blanket layer is arranged on the inner wall of the inner container.
7. The sintering equipment for the graphite heating vacuum tube used for 3D printing of the medical metal implant is characterized by further comprising a furnace cover jacking and rotating mechanism used for jacking and horizontally rotating a furnace cover, wherein the furnace cover jacking and rotating mechanism comprises a rotary arm capable of horizontally rotating, a lower top shaft used for jacking the rotary arm and a handle used for driving the lower top shaft to jack, the rotary arm is connected with the circumferential surface of the furnace cover, and the handle is in transmission connection with the lower top shaft.
8. The sintering equipment for the graphite heating vacuum tube used for 3D printing of the medical metal implant according to claim 7, wherein the furnace cover jacking and rotating mechanism further comprises a guide tube, the guide tube is vertically fixed on the upper portion of the circumferential surface of the furnace body through a fixing frame, an upper linear bearing and a lower linear bearing are arranged in inner cavities at the upper end and the lower end of the guide tube, the swing arm is rotationally fixed on an upper jacking shaft, the lower end of the upper jacking shaft penetrates through the upper linear bearing downwards, a limiting ring which abuts against the upper end surface of the guide tube is arranged on the upper jacking shaft, and the upper end of the lower jacking shaft penetrates through the lower linear bearing upwards.
9. The sintering device for the graphite heating vacuum tube used for 3D printing of the medical metal implant according to claim 8, wherein the lower end of the guiding tube is provided with two fixing plates which extend downwards and are symmetrical, a first shaft is arranged between the lower ends of the two fixing plates, the upper end of the handle is rotatably connected with the two fixing plates through the first shaft, the upper end of the handle is rotatably connected with the lower end of a connecting rod through a second shaft, and the upper end of the connecting rod is rotatably connected with the lower end of the lower top shaft through a third shaft.
10. The sintering equipment for the graphite heating vacuum tube for 3D printing of the medical metal implant according to claim 9, further comprising a plurality of locking mechanisms arranged between the furnace body and the furnace cover, wherein each locking mechanism comprises a locking screw rod capable of being turned up and down and a locking block, a locking hand wheel is arranged at the lower end of each locking screw rod, the upper end of each locking screw rod is hinged to a hinge base fixed on the upper portion of the peripheral surface of the furnace body through a horizontal hinge shaft, the locking block is fixed on the peripheral surface of the furnace cover, and a U-shaped notch is formed in the locking screw rod, which is just clamped into the locking block after being turned up.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921550332.1U CN210486455U (en) | 2019-09-18 | 2019-09-18 | Graphite heating vacuum tube sintering equipment for 3D printing of medical metal implant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921550332.1U CN210486455U (en) | 2019-09-18 | 2019-09-18 | Graphite heating vacuum tube sintering equipment for 3D printing of medical metal implant |
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| CN210486455U true CN210486455U (en) | 2020-05-08 |
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| CN201921550332.1U Active CN210486455U (en) | 2019-09-18 | 2019-09-18 | Graphite heating vacuum tube sintering equipment for 3D printing of medical metal implant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071545A (en) * | 2020-09-01 | 2020-12-11 | 安徽省瀚海新材料股份有限公司 | Surface treatment method for improving coercivity of neodymium iron boron base material |
| CN113292076A (en) * | 2021-06-18 | 2021-08-24 | 江苏秦烯新材料有限公司 | Technology for smelting and recycling silicon tetrachloride slag slurry after cold hydrogenation process |
-
2019
- 2019-09-18 CN CN201921550332.1U patent/CN210486455U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071545A (en) * | 2020-09-01 | 2020-12-11 | 安徽省瀚海新材料股份有限公司 | Surface treatment method for improving coercivity of neodymium iron boron base material |
| CN113292076A (en) * | 2021-06-18 | 2021-08-24 | 江苏秦烯新材料有限公司 | Technology for smelting and recycling silicon tetrachloride slag slurry after cold hydrogenation process |
| CN113292076B (en) * | 2021-06-18 | 2022-06-21 | 新疆大全绿创环保科技有限公司 | Technology for smelting and recycling silicon tetrachloride slag slurry after cold hydrogenation process |
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